Improvement in the mode of preventing the heating of axles or journals



.` aan site @dat effet ntrzA-D. MURFEY, or NewV YonK,'N.Y. ,Ass1eNoR-roTHE-MANHATTAN PACKING MANUFACTURING COMPANY, or'sAMn PLAGE.

Letters PatentNo. 109,23?, dated November 15,1870.

IMPROVEMENT IN THE IvIoDE. oF PREVENTING THE HEATING oF A xLEs 0RJOURNALS.

The Schedule referred to'ln these Letters Patent and making part of thesanne.

I, ELIZA D. MURNEY, of New York, county of N ew rYork, State of NewYork, have invented a Mode of Preventingthe Heating of Shafts, Journals,Grank.

Pins, tc., of which the following'is a specification.

Nature and Object of the Invention.

My invention consists in providing a journal, crankpin, or shaft with'one or more pointed projections,"

arranged as fully described hereafter, so asfto prevent the undueheating of the pin or journal, and of the bearing in which it turns.

Descript'ioaof the Accompanying Drawing.

Figure l represents sufficient of a drivin g-shaft with its pulley andbearing to illustrate my improvement; and

Figure 2 is a perspective view of part of a crankpi-n, showing amodification.

Genera-l Description.

The heating of journals, crank-pins, and their boxes is a source ofinconvenience and loss, which it is the object of 1ny invention toobviate. Y

'lo accomplish this result I provide the journal or shaft with one ormore pointed projections, the application of which, as practical testshave shown, prevents the excessive heating of the journals and theirbearings. j

`The said projections may he arranged in various ways; for instance,pointed pins may be secured at equalv distances apart on the shaft, soas to extend radially from the same, or pointed pins, all curved or bentin the same direction,may be secured to the end of the journal, as shownin fig. '2, or the end of the shaft may he tapered or conical, but inpractice I have found that a most satisfactory result is produced byfitting to the end of the pin or shaft aaletachable metallic cone, A,fig. 1, having a spiral groove on the outside, and a projecting needle,a, at its apex.

By actual experiment, witha shaft carrying-wheel four feet in diameter,driven by a nine-inch belt, andturning four hundred and eighty (480)revolutions a minute, I have found that when provided with a pointedprojection or` projections, as described, `-the journal would notbecomc'unduly heated, but that, on the removal of the said projection,all the other conditions being the same, the 'heat of the bearing wouldincrease to such a degree the water would boil when poured upon it. Y

Inasrnuch as any desired number of pointed projections may be used, andas the arrangement of theY same on the journal or shaft will not affectthe result, I do not limit myself1 to any special number or arrangementof pointed projections; but

I claimj A shaft or journallnovided with a detachable metal cone, lorwith one or morepointed projections, substantiall y as and for thepurpose described.

In testimony whereof, I have signed my name to this specification iu thepresence of two subscribing witnesses. Y

ELIZA D. MURFEY;

Witnesses:

CHARLES E. FOSTER, ALBERT H. Nomns.

